NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

8 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 440
ONVOY, LLC - OH 2
EXIANT COMMUNICATIONS LLC 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 2
NEW CINGULAR WIRELESS PCS, LLC - IL 1
INTRADO COMMUNICATIONS, LLC 1
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2016-12-02 440-661-6XXX 6000–6999Assigned METROPCS, INC. 5562 ASHTABULA OH
2016-12-02 440-661-7XXX 7000–7999Assigned METROPCS, INC. 5562 ASHTABULA OH
2016-11-23 440-671-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL OH
2016-11-23 440-671-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL OH
2016-11-23 440-671-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL OH
2016-11-23 440-671-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 BRECKSVL OH
2016-11-23 440-772-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TRINITY OH
2016-11-23 440-772-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TRINITY OH
2016-11-23 440-772-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TRINITY OH
2016-11-23 440-772-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TRINITY OH
2016-11-23 440-772-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TRINITY OH
2016-11-23 440-907-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 VICTORY OH
2016-11-23 440-907-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 VICTORY OH
2016-11-23 440-907-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 VICTORY OH
2016-11-23 440-907-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 VICTORY OH
2016-11-23 440-907-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 VICTORY OH
2016-11-23 440-907-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 VICTORY OH
2016-11-18 440-412-8XXX 8000–8999Assigned METROPCS, INC. 5562 ELYRIA OH
2016-11-07 440-754-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 PAINESVL OH
2016-10-20 440-907-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORY OH
2016-10-11 440-657-6XXX 6000–6999Assigned METROPCS, INC. 5562 ELYRIA OH
2016-10-07 440-535-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NORTHEATON OH
2016-10-06 440-310-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - OH 7532 COLUMBISTA OH
2016-10-03 440-538-9XXX 9000–9999Assigned METROPCS, INC. 5562 LORAIN OH
2016-09-27 440-494-2XXX 2000–2999Assigned METROPCS, INC. 5562 WICKLIFFE OH
2016-09-12 440-771-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 HILLCREST OH
2016-09-02 440-661-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ASHTABULA OH
2016-08-31 440-901-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHARDON OH
2016-08-19 440-233-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LORAIN OH
2016-08-18 440-671-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BRECKSVL OH
2016-08-15 440-662-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELYRIA OH
2016-08-15 440-662-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 ELYRIA OH
2016-08-15 440-742-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WILLOUGHBY OH
2016-08-01 440-903-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHAGRINFLS OH
2016-07-27 440-907-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORY OH
2016-07-27 440-907-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORY OH
2016-07-18 440-830-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 LORAIN OH
2016-07-13 440-901-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C CHARDON OH
2016-07-13 440-901-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C CHARDON OH
2016-07-07 440-671-0XXX 0000–0999Assigned ONVOY, LLC - OH 464C BRECKSVL OH
2016-07-07 440-671-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C BRECKSVL OH
2016-07-01 440-266-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C MENTOR OH
2016-06-21 440-434-3XXX 3000–3999Assigned ONVOY, LLC - OH 464C LORAIN OH
2016-06-21 440-657-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELYRIA OH
2016-06-21 440-771-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F HILLCREST OH
2016-06-21 440-797-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F BEDFORD OH
2016-06-21 440-975-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F WILLOUGHBY OH
2016-06-20 440-266-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - OH 001F MENTOR OH
2016-06-15 440-671-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K BRECKSVL OH
2016-06-09 440-307-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K MADISON OH

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.